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Evaluation of the adhesion strength of diamond films brazed on K-10 type hard metal

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Evaluation of the adhesion strength of diamond films brazed on K-10 type hard metal

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Título Evaluation of the adhesion strength of diamond films brazed on K-10 type hard metal
Autor Santos, Sergio Ivan dos
Casanova, Carlos Alberto Medeiros
Teixeira, Cleiton Rodrigues
Balzaretti, Naira Maria
Jornada, Joao Alziro Herz da
Abstract The coating of cutting tools with diamond films considerably increases the tool performance due to the combination of the unique tribological properties of diamond with the bulk properties of the substrate (toughness). The tool performance, however, is strongly related to the adhesion strength between the film and the substrate. In this work our main goal was to propose and to test a procedure, based on a tensile strength test, to evaluate the adhesion strength of a diamond wafer brazed on a hard metal substrate, taking into account the effect of the brazing temperature and time. The temperature range studied was from 800 to 980 °C and the brazing time ranged from 3 to 40 min. The obtained results could be used to optimize the costs and time required to the production of high performance cutting tools with brazed diamond wafers.
Contido em Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 7, no.2 (June 2004), p.293-297
Assunto Física
[en] Adhesion strength
[en] Brazing
[en] Cutting tool
[en] CVD
[en] Diamond
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/20063
Arquivos Descrição Formato
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